/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     4.1
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
	This file is part of foam-extend.

	foam-extend is free software: you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by the
	Free Software Foundation, either version 3 of the License, or (at your
	option) any later version.

	foam-extend is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.

Class
	BlockILUCpPrecon

Description
	Template specialisation for tensor block ILUCp preconditioning

Author
	Vuko Vukcevic, FMENA Zagreb. All rights reserved.

\*---------------------------------------------------------------------------*/

#ifndef tensorBlockILUCpPrecon_H
#define tensorBlockILUCpPrecon_H

#include "BlockILUCpPrecon.H"
#include "tensorBlockILUCpPrecon.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

template<>
template<>
void BlockILUCpPrecon<tensor>::calcActiveTypeFactorization
(
	tensorField& preconD,
	tensorField& extUpper,
	tensorField& extLower
) const
{
	// Decoupled version
	notImplemented("void Foam::BlockILUCpPrecon<tensor>::calcFactorization");
}


template<>
void BlockILUCpPrecon<tensor>::calcFactorization() const
{
	// Get upper and lower matrix factors
	CoeffField<tensor>& Lower = extBlockMatrix_.extendedLower();
	CoeffField<tensor>& Upper = extBlockMatrix_.extendedUpper();

	// Calculate factorization
	// Note: lower, diag and upper must have same type as required by the
	// algorithm. This is handled by lowest possible promotion
	if (preconDiag_.activeType() == blockCoeffBase::SCALAR)
	{
		if (Upper.activeType() == blockCoeffBase::SCALAR)
		{
			calcActiveTypeFactorization
			(
				preconDiag_.asScalar(),
				Upper.asScalar(),
				Lower.asScalar()
			);
		}
		else if (Upper.activeType() == blockCoeffBase::LINEAR)
		{
			calcActiveTypeFactorization
			(
				preconDiag_.asLinear(), // Promotes to linear
				Upper.asLinear(),
				Lower.asLinear()
			);
		}
	}
	else if (preconDiag_.activeType() == blockCoeffBase::LINEAR)
	{
		if (Upper.activeType() == blockCoeffBase::SCALAR)
		{
			calcActiveTypeFactorization
			(
				preconDiag_.asLinear(),
				Upper.asLinear(), // Promotes to linear
				Lower.asLinear()  // Promotes to linear
			);
		}
		else if (Upper.activeType() == blockCoeffBase::LINEAR)
		{
			calcActiveTypeFactorization
			(
				preconDiag_.asLinear(),
				Upper.asLinear(),
				Lower.asLinear()
			);
		}
	}
}


template<>
void BlockILUCpPrecon<tensor>::precondition
(
	tensorField& x,
	const tensorField& b
) const
{
	// Decoupled version
	notImplemented("void Foam::BlockILUCpPrecon<tensor>::precondition");
}


template<>
void BlockILUCpPrecon<tensor>::preconditionT
(
	tensorField& xT,
	const tensorField& bT
) const
{
	// Decoupled version
	notImplemented("void Foam::BlockILUCpPrecon<tensor>::preconditionT");
}


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
